Tube cap



FIG. 1 is a top, front, and right side perspective of an embodiment of a tube cap embodying my new design.

FIG. 2 is a front elevation view of the embodiment of FIG. 1.

FIG. 3 is a rear elevation view of the embodiment of FIG. 1.

FIG. 4 is a right side view of the embodiment of FIG. 1.

FIG. 5 is a top plan view of the embodiment of FIG. 1.

FIG. 6 is a bottom plan view of the embodiment of FIG. 1; and,

FIG. 7 is a view of the embodiment depicted in FIG. 1 with the cap open and the top of the tube exposed.

Shown in phantom lines are portions of the exterior of the tube, portions of the top surface of the tube, and portions of the underside of the cap which form no part of the claimed designs. 

The ornamental design for a tube cap, as shown. 